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Synthesis and characterization of alternating copolymers containing bipyridine and phenylene vinylene for fluorescent chemosensors
Author(s) -
Yu ChinYang,
Chen PinYing,
Lin YiHao,
Ciou PeiJia
Publication year - 2015
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.42795
Subject(s) - bathochromic shift , copolymer , phenylene , materials science , polymer , polymer chemistry , metal ions in aqueous solution , bipyridine , fluorescence , photochemistry , metal , chemistry , organic chemistry , crystal structure , physics , quantum mechanics , metallurgy , composite material
Alternating copolymers containing bipyridine and phenylene vinylene were synthesized through a Wittig condensation reaction of their corresponding diphosphonium salts and dialdehydes. The molecular weights of the resulting polymers were relatively low because of the low solubility in the reaction solvents. The optical properties of the polymers were substantially affected by the repeating units of phenylene vinylene. The absorption spectra of the copolymers in the solid state exhibited a bathochromic shift compared to those carried out in solution. The effective conjugation length could be extended with the addition of Cu 2+ , Ni 2+ , and Zn 2+ ions into the polymer solutions in a 1 : 1 ratio of the bipyridine to the phenylene vinylene units. All of the polymer solutions behaved as a turn‐off fluorescent chemosensor upon the addition of a variety of the metal ions. The sensing behavior to various metal ions revealed that the polymers were highly sensitive to the Cu 2+ , Ni 2+ , and Zn 2+ ions. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42795.